Neutrino magnetic moment and a 17-keV. nu. sub. tau
Journal Article
·
· Physical Review Letters; (United States)
- Tata Institute of Fundamental Research, Homi Bhabba Road, Bombay 400 005 (India) Theory Group, Physical Research Laboratory, Ahmedabad-380 009 (India)
We present a SU(2){sub {ital H}} model that can simultaneously accommodate a 17-keV pseudo Dirac neutrino {nu}{sub {tau}} as well as a large transition magnetic moment for nearly massless {nu}{sub {ital e}} and {nu}{sub {mu}}. While the small Dirac term is generated radiatively, the mass corrections for the light neutrinos remain suppressed even on breaking the Voloshin-type SU(2){sub {nu}} symmetry. The cosmological constraints are met by a rapid decay of the {nu}{sub {tau}} into a {nu}{sub {mu}} and a singlet-doublet Majoron.
- OSTI ID:
- 7235348
- Journal Information:
- Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 68:19; ISSN PRLTA; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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